:root {
  color-scheme: dark;
  /* ServanaGo brand greens (asset pack tokens). */
  --sg-green-950: #063D2B;
  --sg-green-900: #075A3D;
  --sg-green-800: #08764B;
  --sg-green-700: #0D9B49;
  --sg-green-600: #25B85B;
  --sg-green-500: #53D769;
  --sg-green-400: #83E65C;
  --sg-green-300: #A7F078;
  --sg-white: #FFFFFF;

  /* Dark surfaces: pack ink, ink-soft and slate-700; surface-raised is ink-soft nudged toward slate. */
  --sg-bg: #10191B;
  --sg-surface: #172326;
  --sg-surface-raised: #1F2F33;
  --sg-border: #344447;

  /* Text. The pack's slate-500 (#6D7C80) is 4.1:1 on bg and 3.7:1 on surface, so muted text is lifted to pass AA. */
  --sg-text: #F1F5F4;
  --sg-text-secondary: #C7D0D2;
  --sg-text-muted: #8A999D;

  /* green-400 is the accent for links, outlines and the wordmark "Go". Button fills use green-800:
     white on green-700 (#0D9B49) is only 3.6:1, green-800 is 5.7:1. */
  --sg-accent: var(--sg-green-400);

  /* Status colors lightened for dark surfaces; the pack's light-surface semantics fail AA here
     (success 3.7:1, danger 3.5:1, info 4.0:1). Warning passes as shipped. */
  --sg-success: #53D769;
  --sg-warning: #C98619;
  --sg-danger: #F07A81;
  --sg-info: #5FA8EE;

  --sg-radius-sm: 6px;
  --sg-radius-md: 10px;
  --sg-radius-lg: 16px;
  --sg-radius-xl: 22px;

  --sg-shadow-panel: 0 8px 24px rgba(0, 0, 0, 0.22);
  --sg-shadow-focus: 0 0 0 3px rgba(131, 230, 92, 0.28);
}
/* Pico scales the root up to 21px on wide screens; every rem size here follows this one value. */
html { font-size: 90.5%; }
html, body {
  background: var(--sg-bg);
  color: var(--sg-text);
}
:focus-visible {
  outline: 2px solid var(--sg-accent);
  outline-offset: 2px;
}

/* ---- Pico mapping: ServanaGo dark theme ---------------------------------------------------- */
:root[data-theme="dark"] {
  --pico-font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --pico-background-color: var(--sg-bg);
  --pico-color: var(--sg-text);
  --pico-muted-color: var(--sg-text-muted);
  --pico-muted-border-color: var(--sg-border);
  --pico-h1-color: var(--sg-text);
  --pico-h2-color: var(--sg-text);
  --pico-h3-color: var(--sg-text);
  --pico-border-radius: var(--sg-radius-md);

  --pico-primary: var(--sg-accent);
  --pico-primary-background: var(--sg-green-800);
  --pico-primary-border: var(--sg-green-700);
  --pico-primary-underline: rgba(131, 230, 92, 0.5);
  --pico-primary-hover: var(--sg-green-300);
  --pico-primary-hover-background: var(--sg-green-900);
  --pico-primary-hover-border: var(--sg-green-600);
  --pico-primary-hover-underline: var(--sg-green-300);
  --pico-primary-focus: rgba(131, 230, 92, 0.35);
  --pico-primary-inverse: var(--sg-white);

  --pico-secondary: var(--sg-text-secondary);
  --pico-secondary-background: var(--sg-surface-raised);
  --pico-secondary-border: var(--sg-border);
  --pico-secondary-hover: var(--sg-text);
  --pico-secondary-hover-background: var(--sg-border);
  --pico-secondary-hover-border: var(--sg-border);
  --pico-secondary-underline: rgba(199, 208, 210, 0.5);
  --pico-secondary-focus: rgba(199, 208, 210, 0.25);
  --pico-secondary-inverse: var(--sg-text);

  --pico-card-background-color: var(--sg-surface);
  --pico-card-border-color: var(--sg-border);
  --pico-card-sectioning-background-color: var(--sg-surface-raised);
  --pico-card-box-shadow: var(--sg-shadow-panel);

  --pico-form-element-background-color: var(--sg-bg);
  --pico-form-element-selected-background-color: var(--sg-surface-raised);
  --pico-form-element-border-color: var(--sg-border);
  --pico-form-element-color: var(--sg-text);
  --pico-form-element-placeholder-color: var(--sg-text-muted);
  --pico-form-element-active-background-color: var(--sg-bg);
  --pico-form-element-active-border-color: var(--sg-accent);
  --pico-form-element-focus-color: var(--sg-accent);
  --pico-form-element-disabled-background-color: var(--sg-surface);
  --pico-form-element-invalid-border-color: var(--sg-danger);
  --pico-form-element-invalid-focus-color: var(--sg-danger);
  --pico-form-element-valid-border-color: var(--sg-success);
  --pico-form-element-valid-focus-color: var(--sg-success);
  --pico-switch-checked-background-color: var(--sg-green-700);

  --pico-table-border-color: var(--sg-border);
  --pico-table-row-stripped-background-color: rgba(31, 47, 51, 0.45);
  --pico-code-background-color: var(--sg-surface-raised);
  --pico-code-color: var(--sg-text-secondary);
  --pico-mark-background-color: rgba(131, 230, 92, 0.25);
  --pico-mark-color: var(--sg-text);
  --pico-del-color: var(--sg-danger);
  --pico-ins-color: var(--sg-success);
  --pico-box-shadow: var(--sg-shadow-panel);
  --pico-dropdown-background-color: var(--sg-surface-raised);
  --pico-dropdown-border-color: var(--sg-border);
  --pico-dropdown-hover-background-color: var(--sg-surface);
}

/* ---- Navigation and brand -------------------------------------------------------------------- */
/* full-bleed bar: spans 100% of the page, content inset from the edges */
body > header.topbar { width: 100%; padding-inline: 2rem; border-bottom: 1px solid var(--sg-border); background: var(--sg-surface); margin-bottom: 1.5rem; }
@media (max-width: 640px) { body > header.topbar { padding-inline: 1rem; } }
body > header nav { --pico-nav-element-spacing-vertical: 0.6rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--sg-text); text-decoration: none; }
.brand:hover { color: var(--sg-text); }
.brand img { height: 2rem; width: auto; display: block; }
.wordmark { font-size: 1.2rem; font-weight: 700; letter-spacing: 0.01em; }
.wordmark b { color: var(--sg-accent); font-weight: 700; }
body > header nav a:not(.brand) { color: var(--sg-text-secondary); }
body > header nav a:not(.brand):hover { color: var(--sg-accent); }

.login-brand { text-align: center; margin-bottom: 1.5rem; }
.login-brand img { height: 6rem; width: auto; }
.login-brand .wordmark { display: block; font-size: 1.8rem; margin-top: 0.5rem; }
.login-box { max-width: 26rem; margin-inline: auto; }

/* ---- Cards, tables, forms -------------------------------------------------------------------- */
article { border: 1px solid var(--sg-border); border-radius: var(--sg-radius-lg); box-shadow: var(--sg-shadow-panel); }
article > header { background: var(--sg-surface-raised); border-bottom: 1px solid var(--sg-border); color: var(--sg-text-secondary); font-weight: 600; }
article > h2:first-child, article > h1:first-child { margin-top: 0; }
article:has(> table, > #routes) { padding-inline: 0.5rem; }
article table { width: 100%; margin-bottom: 0; } /* columns squeeze and wrap on narrow screens; no card scrollbar anywhere */
article th, article td { padding: 0.55rem 0.6rem; } /* desktop: columns read like columns, no mid-word wraps */
@media (max-width: 640px) { article th, article td { overflow-wrap: anywhere; } } /* phone: squeeze inside the card instead */
article td:last-child { white-space: nowrap; }
article td:last-child a:not(.icon-btn) { display: block; margin-bottom: 0.3rem; }
td small { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; width: 9.5rem; overflow-wrap: anywhere; }
td small.up-up, td small.up-down { display: inline-block; width: auto; }
details.docker > div { max-height: 18rem; overflow: auto; margin-bottom: 0.5rem; }
th { color: var(--sg-text-secondary); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
small { color: var(--sg-text-muted); }
fieldset { border: 1px solid var(--sg-border); border-radius: var(--sg-radius-md); padding: 0.75rem 1rem; margin-bottom: 1rem; }
legend { color: var(--sg-text-secondary); padding: 0 0.4rem; font-size: 0.9rem; }
details > summary { color: var(--sg-text-secondary); cursor: pointer; }
:where(input, select, textarea):focus { box-shadow: var(--sg-shadow-focus); }

/* ---- Buttons: green fill = primary action; accent outline; neutral outline; red destructive; amber caution ---------------- */
button.outline.secondary, [role="button"].outline.secondary { --pico-color: var(--sg-text-secondary); --pico-border-color: var(--sg-border); }
button.outline:not(.secondary):not(.danger):not(.warn) { --pico-color: var(--sg-accent); --pico-border-color: var(--sg-accent); }
button.danger, button.outline.danger, [role="button"].danger { --pico-color: var(--sg-danger); --pico-border-color: var(--sg-danger); --pico-background-color: transparent; background: transparent; }
button.danger:hover, button.outline.danger:hover { background: rgba(240, 122, 129, 0.14); --pico-color: #F7A1A6; --pico-border-color: #F7A1A6; }
button.warn, button.outline.warn { --pico-color: var(--sg-warning); --pico-border-color: var(--sg-warning); --pico-background-color: transparent; background: transparent; }
button.warn:hover, button.outline.warn:hover { background: rgba(201, 134, 25, 0.16); }
td button, td [role="button"] { margin: 0; padding: 0.3rem 0.7rem; font-size: 0.85rem; width: auto; }
/* Icon-only row actions sit on one line; the label lives in aria-label and the data-tooltip. */
td.actions { white-space: nowrap; }
td.actions .icon-btn + .icon-btn { margin-left: 0.3rem; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 2rem; height: 2rem; padding: 0; vertical-align: middle; }
td .icon-btn { width: 2rem; padding: 0; }
.icon-btn .icon { flex: none; }
/* The Edit link is a real link (navigates) dressed like the outline buttons beside it. */
a.icon-btn { border: 1px solid var(--sg-accent); border-radius: var(--pico-border-radius); color: var(--sg-accent); text-decoration: none; }
a.icon-btn:hover { background: color-mix(in srgb, var(--sg-accent) 14%, transparent); }

/* ---- Alerts and banners ------------------------------------------------------------------------ */
.banner { padding: 0.75rem 1rem; margin: 0 0 1rem; border-radius: var(--sg-radius-md); border: 1px solid; background: var(--sg-surface); }
.banner code { background: transparent; color: inherit; padding: 0; word-break: break-word; }
.banner.danger { border-color: var(--sg-danger); background: color-mix(in srgb, var(--sg-danger) 14%, var(--sg-surface)); color: #ffd3d6; }
.banner.warn { border-color: var(--sg-warning); background: color-mix(in srgb, var(--sg-warning) 13%, var(--sg-surface)); color: #ffe6bd; }
[role="alert"]:not(.banner):not(:empty) { color: var(--sg-danger); }

/* ---- Status indicators (green = secure/healthy, amber = attention, red = error) --------------------- */
.cert-issued, .dns-synced, .up-up, .cert-pending, .dns-pending, .dns-conflict, .cert-expiring, .cert-error, .dns-error, .up-down {
  display: inline-block; padding: 0.05rem 0.55rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; line-height: 1.5;
  border: 1px solid currentColor; white-space: nowrap;
}
small.up-up, small.up-down { font-size: 0.8rem; }
.tune { display: inline-block; padding: 0.05rem 0.55rem; border: 1px solid var(--sg-border); border-radius: 999px; color: var(--sg-text-secondary); font-size: 0.8rem; line-height: 1.5; white-space: nowrap; }
.cert-issued, .dns-synced, .up-up { color: var(--sg-success); background: color-mix(in srgb, var(--sg-success) 12%, transparent); }
.cert-pending, .dns-pending, .dns-conflict, .cert-expiring { color: var(--sg-warning); background: color-mix(in srgb, var(--sg-warning) 12%, transparent); }
.cert-error, .dns-error, .up-down { color: var(--sg-danger); background: color-mix(in srgb, var(--sg-danger) 12%, transparent); }

/* ---- Logs ---------------------------------------------------------------------------------------- */
tr.log-error td:nth-child(2) { color: var(--sg-danger); font-weight: 600; }
tr.log-warn td:nth-child(2) { color: var(--sg-warning); font-weight: 600; }
tr.log-info td:nth-child(2), tr.log-debug td:nth-child(2) { color: var(--sg-text-muted); }
#log-rows td { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.82rem; vertical-align: top; }

/* ---- Help: field hints, ? links, next steps, checklist, preview --------------------------------------- */
form label + small, form small + small, form fieldset > small { display: block; margin: -0.6rem 0 1rem; color: var(--sg-text-muted); font-size: 0.85rem; line-height: 1.4; }
article[id] td:first-child { overflow-wrap: normal; min-width: 11rem; }
form label:has(> input[type="checkbox"]) + small { margin-top: 0.15rem; padding-left: 1.9rem; }
.help-link { display: inline-flex; align-items: center; justify-content: center; width: 1.25rem; height: 1.25rem; margin-left: 0.25rem; border: 1px solid var(--sg-border); border-radius: 50%; font-size: 0.75rem; font-weight: 700; line-height: 1; text-decoration: none; color: var(--sg-accent); vertical-align: middle; }
.help-link:hover { background: var(--sg-accent); color: var(--sg-bg); }
td small.next { display: block; width: auto; max-width: 15rem; -webkit-line-clamp: unset; line-clamp: unset; overflow: visible; margin-top: 0.2rem; color: var(--sg-text-secondary); font-size: 0.8rem; line-height: 1.35; }
.explain { max-width: 16rem; margin-top: 0.3rem; font-size: 0.8rem; line-height: 1.4; color: var(--sg-text-secondary); }
.explain strong { color: var(--sg-text); }
.checklist ul { list-style: none; margin: 0; padding: 0; }
.checklist li { margin: 0 0 0.6rem; padding-left: 1.6rem; position: relative; list-style: none; }
.checklist li::before { position: absolute; left: 0; top: 0; font-weight: 700; }
.check-ok::before { content: "\2713"; color: var(--sg-success); }
.check-todo::before { content: "\2022"; color: var(--sg-warning); }
.check-bad::before { content: "\2715"; color: var(--sg-danger); }
.check-detail { font-size: 0.9rem; color: var(--sg-text-secondary); }
.preview { padding: 0.7rem 0.9rem; border: 1px dashed var(--sg-border); border-radius: var(--sg-radius-md); color: var(--sg-text-secondary); font-size: 0.92rem; }
.help-toc ul { display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; list-style: none; padding: 0; margin: 0 0 1.5rem; }
article[id] { scroll-margin-top: 1rem; }
dt { font-weight: 600; margin-top: 0.8rem; }
dd { margin-left: 0; color: var(--sg-text-secondary); }

@media (max-width: 640px) {
  body > header nav { flex-wrap: wrap; }
  .wordmark { font-size: 1.05rem; }
}